SIMON SOKA

Evolved s.r.o.

Founder & Full-Stack Developer

• Built and launched evolved.sk from scratch, a live e-commerce store processing real orders. React 19, TypeScript, Vite with custom SSR, Express, MongoDB, and Redis.
• Integrated the commerce stack end to end: Stripe payments, webhooks and invoicing, Packeta shipping, Heureka product feed, and automated EU VAT rates.
• Ran everything else the store needs: infrastructure and monitoring, full-stack security, SEO and structured data, conversion analytics, GDPR, plus the marketing and paid ads.
• Built a GEO/SEO analytics SaaS that tracks brand citations across ChatGPT, Perplexity, Gemini, and Claude, with keyword clustering, site crawling, and backlink monitoring. Next.js, Prisma, PostgreSQL, BullMQ, Stripe.
• Work AI-native: agent-driven implementation with Claude Code, custom MCP servers, and automated review and test loops on top of TDD. Published @etheaven/codex-mcp-server to npm and the Claude Code plugin marketplace.
• Delivered chensconsulting.com for a client, from design to launch. Next.js, Sanity CMS, Vercel.

• Shipped full e-commerce platform solo: payments, shipping, invoicing, i18n (SK/EN), and analytics
• Achieved Lighthouse performance score of 93-96 with SSR, lazy loading, and idle-until-urgent hydration
• Delivered 2,300+ commits across four production codebases in 14 months, solo, with unit and E2E test coverage throughout

Confidential Client · Under NDA

Backend & Infrastructure Engineer · Contract · Remote

• Wrote the C++20 mining server behind a platform serving 10,000+ miners across 5+ continents. Asynchronous networking, in-memory event storage, and multiple proof-of-work algorithms with merged mining.
• Implemented the mining protocol end to end, from job distribution and share validation through difficulty targeting and adaptive tuning per miner.
• Tuned it for sustained load and hunted the concurrency defects that surfaced there, including a recursive mutex deadlock in the message send path.
• Owned the infrastructure: multi-region data replication, a private-network-only data plane, edge routing with rate limiting, and containerized node orchestration.
• Backed it with unit, integration, and performance test suites that gate every rollout.

• Took the server from first commit to production, live across multiple chains
• Near-zero-downtime upgrades with blue/green rollout and graceful connection drain

Ditec

Full-Stack .NET Developer · Remote

• Collaborated with IT analysts to translate EU/national customs business logic into actionable plans for a critical government customs administration system upgrade for the Slovak Financial Administration
• Designed and implemented real-time declaration tracking using RabbitMQ for asynchronous processing of customs data across import/export workflows
• Optimized database interactions with Dapper and message queuing with RabbitMQ, improving overall customs clearance processing speed
• Built complex desktop (WPF) interfaces using Prism and DevExpress for back-office customs operations
• Modernized codebase with DryIoc dependency injection and strict unit testing (XUnit, Moq)
• Presented the upgraded architecture and features to key stakeholders from the Slovak Financial Administration

• Improved customs processing speed by 30%
• Reduced asynchronous declaration processing time by 25% with real-time tracking

Mastercard

Full-Stack .NET Developer · Itera Slovakia · Remote

• Developed and maintained core payment systems for Mastercard Payment Services Denmark, serving critical Danish financial infrastructure used by 95%+ of the population
• Worked on Betalingsservice (consumer direct debit) and Leverandørservice (B2B payments) platforms, including API integrations and web portals
• Built and optimized high-throughput REST APIs under Mastercard’s Golden Standards compliance framework
• Delivered in a cross-border Scrum team (Slovakia, Denmark) using C#/.NET, ASP.NET Core, Razor Pages, Azure DevOps, and Azure Cloud

• Built a fraud detection system reducing fraudulent transactions by 15%
• Shipped an API handling 1M+ requests/day

CRIF

Full-Stack .NET Developer · CRIF Slovak Credit Bureau · Remote

• Developed and enhanced Credit Navigator (CNAV), a secure web portal enabling electronic communication between financial institutions, municipalities, and banks for credit data access and tax enforcement
• Built data visualization dashboards for credit reports from SRBI (Slovak Banking Credit Bureau) and NRKI registers, providing real-time financial insights to institutional clients
• Optimized MSSQL database queries and Entity Framework data access layer, improving response times for credit report retrieval across 17+ banks
• Maintained and improved ASP.NET MVC backend with RazorEngine templating and AngularJS frontend for server-side rendering of financial documents

Logamic

Software Engineer · Remote

• Built software infrastructure for managing laboratory hardware in the U.S.
• Focused on WPF, Prism, DevExpress, and TDD
• Streamlined backend operations using Python and C

TSS Group

.NET Developer · Remote, Hybrid, On-site

• Managed a team of 7 optimizing a high-traffic web application
• Created a security platform for hotels and buildings using ASP.NET Core, GoLang, and Python
• Worked with SOAP, WSDL, SATEL security protocols, and AI-based license plate recognition

Slovenská technická univerzita v Bratislave

Information Technology

• Prioritized career growth, transitioning to full-time professional development

Oracle Certified Professional

Oracle Database Security Expert Certification